Papee folding machine-



9 Sheets-Sheet 1. F. VON MARTINI.

' PAPER FOLDING MACHINE. N0. 316,314. Patented April, 1885.

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9 SheetsSheet 2. F. VON MARTINI.

PAPER FOLDING MACHINE. No. 316,314. Patented Apr. 21, 1885.

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F. VON MARTINI.

PAPER FOLDING. MACHINE.

N0..316,314. Patented Apr.21, 18.85.

N. PEYERSv PhoXa-Ll'hngmphur. Washmglon. u c.

9 Sheets-Sheet 3.

9 Sheets-Sheet 4.

F. VON MARTINI.

PAPER FOLDING MACHINE.

No. 316,314. Patented Apr, 21, 1885.

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F. VON MARTINI.

PAPER FOLDING MACHINE.

No. 316,314. Patented Apr. 21, 1885.

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9 Sheets-Shem; 6.

P. VON MARTINI.

PAPER FOLDING MACHINE.

No. 316,314. Patented Apr. 21, 1885.

9 SheetsShee :t 7 F. VON MARTINI.

PAPER FOLDING MACHINE;

No. 316,314. I Patented Apr 21, 1885.

WITNESSES 9 SheetsSheet 8.

F. VON MARTINI.

PAPER FOLDING MACHINE- No. 316,314. Patented Apr. 21, 1885;

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9 Sheets-Sheet 9. F. VON MARTINI.

PAPER FOLDING MACHINE.

No. 316,314. Patented Apr. 21, 1885.

WITIYES'SES INVEN TUR Wfl i M W M-- $2M $6M $1M M Attorney N PEYERS. PlIofD-Ulhngrapher. Washinglom D. C.

UNITED STATES FRIEDRICH VON MARTINI, OF FRAUENFELD, SWITZERLAND.

PAPER-FOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 316,314, dated AprilZl, 1885.

Application filed February 13, 1880. Patented in England October 31, 1877, No. 4,049, and in France April 4, 1872, No.123,640.

To all whom it may concern-.-

Be it known that I, FRIEDRICH voN MAR- TINI, of Frauenfeld, in the Republic of Switzerland, have invented new and useful Improvements in Paper-Folding Machines, of which the following is a specification.

This invention of improvements in foldingmachines has reference to machines designed more particularly for folding paper intended to be bound into books. 7 V

The improvements are applicable to machines of various sizes and for various numbers of breaksfor instance, machines em-' bodying some or all of the improvements may be constructed either to fold each sheet of paper twice, or three times, or four times.

The accompanying drawings show a threebreak machine according to the invention that is, a machine arranged to fold each sheet three times. Figure 1 is an end elevation, partly in section, of the machine, looking from the right hand when facing the driving side of the machine. Fig. 1 is a detail of the gripper-frame, bed, and saddle. Fig. 2 is a side elevation viewed from the driving side of the machine, certain parts being omitted in order to illustrate other parts better. Fig. 3 is an elevation of the reverse end to that shown in Fig. 1. Fig. 4 is a perspective view showing the tables, one folding-knife, grippers, and other parts. Fig. 5 is a detail view of grippers. Fig. 6 is a detail view showing the table in which the second folding-knife works, the third folding-knife, and other portions of the mechanism. Fig. 7 is a skeleton view of the segmentwheel, the right and left hand toothed rim appearing in front.

intermittent wheels, and the connection to the main driving-shaft, together with the outline of the toothed circle, and the wheel acting therein for operating the first folding-knife. Fig. 8 is a similar skeleton view reversed, the These figures 7 and 8 show the means for transmitting motion to the parts which operate the-first folding-knife. Fig. 9 is a diagram showing the path described by the crank-pin, which works the pitman operating the first foldingknife. Fig. 10 is a longitudinal view, partly in section, and having some of the parts removed to show the mechanism for operating the second and third folding-knives and the rollers which receive the folded sheet from the third .reciprocating motion to the piling-fan.

] folding-knife. Fig. 11 is a detail showing the means for fastening one end of the flexible guides. Fig.- 12 is a plan of the table in which the saddle of the second folding-knife works, having all the surrounding parts taken away. Fig. 13 is a detail of the third folding-knife. Fig. 14. is a detail of the slotted crank-arm. through which and other connected parts motionis transmitted to the grippers. Fig. 15isa detail of the head which-carries the first folding-knife and the way on which it moves in section. Fig. 16 is a detail of the facecam which affords the rocking motion to the grippers through the medium of connecting arms and levers. Fig. 17 is a detail of the face-cam which, through intermediate mechanism, gives Fig. 18 is a detail showing the base of the second folding-knife and the link by which it is operated. Fig. 19 is a top plan of the lower table, showing the third folding-knife and the mechanism for operating the same. Fig. 20 is a side elevation of Fig. 19. Fig. 21 is a section on line 00 :0, Fig. 19. Fig. 22 is a diagram of the mechanism for operating the grippers; Fig. 23, a side elevation of the saddle for the gripping mechanism and a portion of the track whereon it travels. Fig. 24 is a top plan view of Fig. 23. Fig. 25 is a sectional view on line 3 is a strong cast-iron table planed on its surface, and fitted betweenthe frames 2, in about the mid-position of the machine generally, as shown in Fig. 1.

4 and 5 are two cast-iron folding-tables, furnished in this case with four longitudinal grooves of such a depth as to receive the fixed parts of the grippers, hereinafter described, so that the upper surfaces of these parts coincide with the surface of the folding-tables 4 and 5, fixed in a horizontal plane on the top of the frames 2, having a space (say half an inch) between their ends, through which a blade, hereinafter called the first folding-knife, passes. At the outer ends of these tables are fitted in the same plane the cast-iron planed feeding-tables 6. The outer ends, 7, of these tables are jointed, and are capable of being let down, and are kept in their normal position by the brackets 8, the object of this arrangement being-to allow the attendant to approach nearer the grippers when small work is being done.

9 is a hand fly-wheel. This wheel is firmly keyed onto the first-motion shaft 10, which shaft is supported transversely across the frames by two plumber-blocks at 11, as shown in Fig. 1, the outer end being carried by a cast-iron bracket and plumber-block at 12.

13 is a pair of drums, fast and loose, by which the whole of the motion is communicated to the machine through the shaft 10.

13 is a miter-wheel keyed onto the far end of the shaft 10, between the frames and gearing,with acorresponding miter-wheel, 56*, for driving the pressing and delivery rollers, hereinafter described.

1 1 is the ordinary striking-gear for the purpose of throwing the band on and off the fixed pulley, and is capable of being actuated at either end of the machine, as shown.

15 is the driving-pinion firmly keyed onto the-shaft 10.

16 is an intermediate wheel fixed by a stud-- in proper position on the ribs of the front frame. This intermediate wheel is driven by the pinion 15, and drives a compound segment-wheel, 17, as shown. This compound segment-wheel has teeth on its outer circumference. It has a toothed segment, 17*, on its side of the same radius, and having also teeth. On the same face and opposite to the toothed segment is formed a steadyingsegment, 17

It is a turned segment of a circle concentric with the wheel, but of smaller radius.

Between the ends of the toothed segment and the ends of the steadying-segment,and on the pitch-line of the wheel,are fixed,by means of brackets bolted to the outer face of the wheel, two anti-friction pulleys or rollers, 18,

Fig. 2, which take into gabs or notches, as-

hereinafter explained, giving two wheels an intermittent motion alternately, one of said pulleys or rollersthat is, the one in advance of the toothed segmentcommencing to give one intermittent complete revolution to each of the said intermittent wheels during each revolution of the compound segment-Wheel 17, and the other pulley or roller (in rear of the toothed segment) completing the revolushown invFig. 1. At the opposite end of this shaft, just inside the frame, is keyed a bevelpinion, 18, which gears into two bevelwheels keyed onto the horizontal longitudinal shafts, hereinafter to be described, the proportion of gearing being such that two revolutions ofthe pinion cause one revolution ofeach of the wheels in contrary directions.

19 is the left-hand intermittent wheel. It is formed at its outer circumference with anumber of small teeth, two larger teeth, 'two gabs or notches into which the anti-friction rollers on segment-wheel 17 take, and two projecting crutch-steadying pieces which coincide with and fit onto the steadyingsegment 17 XX on the face of the wheel 17 when in position of rest. The wheel 19 is keyed onto a horizontal transverse shaft, 20, carried by suitable plumberblocks in the side frames. (See Fig. 1.)

In such a machine as represented the compound segment-wheel' may have, say, sixtyfive teeth on its outer circumference,and be sixteen and one-half inches diameter at the pitchline, the toothed segment 17 having twentynine teeth, the steadying=segment 17 be of six inches radius, and the number of small teeth at the outer circumference of wheel 19 be, say, twenty-nine.

Near to the near side frame, and between the frames, is keyed onto this shaft 20 a small miter-wheel, 21, which gears into another miter-wheel, 22, which drives a short horizontal shaft placed longitudinally and carried in a suitable bracket, 23, attached to the under side of the table 8. At the other end of the said short horizontal shaft is another pair of miter-wheels, 24, one of which is keyed to a vertical shaft 24*,hereinafter described.

The farther extreme end of the shaft 20 is fittedwith a crank-arm, 25. On the pin 'of this crank-arm is fitted freely a toothed wheel, 26, which gears into an internally toothed circle, 27 and carries on its outer face a crankarm, 28, at the end of which is fitted a pin 'which takes into a connecting-rod, 28 Fig.

1, to work the folding-knife 76, hereinafter to be described. The proportion of this gearing is such that the wheel is one-half the diameter of the toothed circle 27 at its pitchline, and consequently the wheel 26 on the crank-arm makes two revolutions during its complete traverse of the toothed circle 27, and the whole of these motions partake of the intermittent character given to the intermittent wheel 19, before described. Thus the pin (consequently the conuectingrod 28*) on the crank-arm attached to the revolving wheel 26 has a long elliptical motion. This motion is generally termed the epicycloidal motion; but inasmuch as the crank-arm attached to the revolving wheel is of greater length than the radius of that wheel, the motion of the crank-pin, instead of being rectilinear, is elliptical.

29 is the right-hand intermittent wheel, and is precisely similar to wheel 19, and has a similar intermittent motion acting alternately with the wheel 19. The wheel 29 is keyed onto a I gether at the right-hand ends in pairs, by

short transverse shaft 29*, and is carried by one block in the near side frame, and a ped estal-block, 30, fixed onto the base-plate. Between the two bearings on this shaft is keyed a toothed wheel, 31, which gears into a wheel, 31*, of twice 'the diameter of the wheel 31, fixed on another transverse shaft, hereinafter to be described. At the end of this shaft 29*, is formed a crank-arm, 32, and pin. To this is attached a connecting-rod, 33,which isjointed to a vibrating lever, 34, jointed to the baseplate 1, which bymeans of a short connecting-rod, 34*, aetuates a vertical folding blade or knife, hereinafter called the second vertical foldingknife. I

35 is a transverse shaft carried by a plumber'block in each frame. Onto this shaft is keyed a toothed wheel, 31*, driven by small wheel 31 on the right-hand intermittent shaft 29, as before described. The near end of this shaft is fitted with a slotted erankarm, 36, which crank-arm is fitted with an adjustable crank-pin regulated by a screw. This crankpin is connected by a rod, 37, to a long vibrating lever, 38, whose lower end is jointed to the base-plate 1. andwhose upper end,-b v means of a connecting-rod. 39, is attached to the sliding saddle 61, hereinafter to be described.

40 is the left-hand longitudinal horizontal shaft before referred to. This shaft is carried by suitable plumberblocks, fixed onto the base-plate 1, as shown. Its inner end is furnished with a bevel-wheel driven by the pinion 18 on shaft 18 as before stated, and makes one revolution for every two of the pinion. Onto the outer end of this shaft is fitted the small cam 41, which, by means of the bellcrank lever 42 and connecting-rod and joint 43,aetuates the lefthand pointingframe,hereinalter described. On the intermediate portion of this shaft 410 is keyed a face cam, 41. which, by means of the anti friction roller and bell-crank lever 45, aetuates the grooved gripper-motion bar by means of connecting-rod 46 and lever 46 The shaft 40 has a continuous rotary motion.

47 is the right-hand longitudinal shaft here inbefore mentioned. This shaft, like shaft 40, is supported by standards and plumber blocks from the base-plate 1, and is similarly fitted with a bevel wheel on the inner end and a small cam, 48, on the outer end, for driving the right-hand point-frame, but it revolves in the contrary direction. On the intermediate part of this shaft is keyed a face-cam, 49, which, by means of anti-friction roller and bell-crank lever 50, and connectingrod and bellcrank 51, joint and connecting-rod 52, gives oscillating motion to the piling-fan, hereinafter described.

On the top of the table 3 is fixed a framework, 53, carrying by suitable adj ustable bearings two pairs of pressing-rollers, 54 54*, 55 55*, whose axes are longitudinal with the machine, as shown. These rollers are geared toe .means of small wheels keyed to their shaft.

The lower one of each7o as shown in Fig. 1. pair of these rollers takes into, and the 'two lower rollers are-driven (in common) by,a small toothed-wheel, 56, underneath, which in its turn is driven by the small miter wheel 56 (shown in dotted lines in Fig. 1, as be-.

fore mentioned,) miter wheel 13*, and shaft 10.

Fitted in the frame 53, and at the back of the lower pressing-roller, is on the right-hand side a pin on which revolves asmall pinion in gear with the wheel on the back lower pressing-roller. This small pinion gears into apinion fixed onto the end ofthe delivery-tape spindle 57, supported in the frames 53, and revolving freely in the same. The spindle 57 is cireumt'erentially grooved, in the usual manner, so as to hold the delivery-tapes 58 in position, and byfmeans of these delivery-tapes 58 drives the other tape-roller.59, attached to thepilingframe, hereinafter described.

60 is the gripper-frame bed. which is truly planed on its face and has V-shaped edges. It is cast open longitudinally. similarly to a lathe bed. as shown in end view, Fig. l. and side view, Fig. 2. It is provided with suit able lugs or fasteuingpieces. and fastened firmly to the near side of the frame. near to the top. in a horizontal position, with the flat face outward, as shown. In the longitudinal space of this bed is titted a rectangular bar, 60*, free to move on eccentric pivots at each end. This bar has a longitudinal groove in its outer edge, and is fitted with a lever, 46*, before mentioned, by which it is caused to rock on its axis; consequently the end of the lever taking into this longitudinal groove will be actuated by the partial rotation of this bar, notwithstanding that the end of the said lever may have a rocking motion at the same time. This is shown in Fig. l at 60 and in Figs. 23 to 28.

61 is a saddle, planed to fit the bed 60 and to traverse truly and freely along the same. The saddle is caused to traverse along the bed 60 by means of the connecting-rod 39 and vibrating lever 38, the connecting-rod 39 work ing freely on the axis 62. The axis 62 passes through the saddle 61 centrally, and is furnished at the inner face of saddle 61 with a small crank-arm, .63, extending toward the right, which crank is furnished with a spherically-headed crank-pin taking into grooves of the longitudinal vibrating bar 60*. It is evident that notwithstanding the rocking motion of the saddle 61, and consequently of the axis 62, the rocking motion of the bar 60* will be communicated to the axis 62 and to the lever 61, attached to it.

65 is the gripper-frame, firmly attached to the traversing saddle 61 at right angles to the bed 60, and parallel to the folding-tables 4 and 5. At the under side of this gripper-frame are formed two or more arm-pieces, 66, forming the under limbs of the grippers proper on longitudinal grooves planed in the tableslc theseframes are elongated and T-formed, as

each side of the gripper-frame, as shown in I Fig. 5, These are made in one piece with or fixed to the gripper-frame65, and are placed at right angles transversely to its length, as shown. The gripper frame is hollow throughout its length. In the hollow space the gripper-bar 67 is fixed to rock on pivots at either end, itsaxial line beingjparallel with the center of the gripper-frame.

On the bar 67 are fixed transversely, immediately over the lower gripper-limbs, 66, two or more spring gripper-arms, 68, as required. These are firmly attached to the gripper-bar.

The near end of the gripper-bar 67 has a locking-piece, 69, Fig. 2, formed, on it, as shown, so that when this locking-piece is caused to rock the gripper-bar 67 rocks with it, and consequently the spring-grippers 68 are elevated or depressed on either side of the gripper-frame alternately. The position of the grippers 68 on the gripper-bar 67 is such that when the gripper-bar is in the middle of its motion the spring-gripperson either side of it shall be away from the lower limbs, 66, of the grippers. Thus all the grippers will be open.

The lever 64, before mentioned, is caused to rock, as before explained. When it is in its mid-position, its length is so arranged that the locking-piece 69 shall be left perfectly free, and consequently all the spring-grippers 68 raised; but when it is at either end of its traverse, as shown in Fig. 2, to the left, then the righthand spring-grippers are pressed and locked down in that position by the action of the gripper-bar 67, and when the lever 64 is over to the right, then the spring grippers to the left are in a similar position, holding whatever may be placcdsuch as paper-between themselves and the lower limbs, 66. It will thus be seen that when the grippers are open and traversing the table they are in a condition to receive a sheet of paper lying on the folding-table, the lower limbs of the grippers 66 traveling in the before-mentioned and 5, with their upper surfaces at the level of the said tables, or slightly below.

The numbers of the pairs of grippersmay be arranged to suit any class of work; and it will thus be seen that any sheet of paper properly placed and pointed on either of the lay ing-on tables 6 will be seized by the open grippers as they travel toward the sheet. The grippersclose on the sheet, which is taken away under the first folding-knife to be folded, as hereinafter explained.

70 and 71 are the two point-frames, which vibrate on axes at the level of the folding and laying-on tables, in the position shown in Figs.- 1 and 2, at or near the middle of the near side of the pointing-tables. The upper parts of shown, and on the inner surfaces of these Ts are formed recessed grooves, suitable for taking the enlarged head or end of the pointbars 72, which are formed so asto slide freely in the recessed grooves of the T-heads, and to fasten in any position of their length by means of tightening-nuts. Thus the point-bars can be shifted to and fixed in any position in the length of the T-heads of the point'frames- Below the'axes of the point-frames, and run ning inward toward the machine, are attached or formed levers 73 and 74, which are caused to vibrate on their axes by means of the connecting-rods 43 and 48 as before explained. Thus vibrating motion imparted to the pointframes wil be communicated to the point-bars 72 and to the points andpoint-holders 75, which slide freely along the point-bars 72, and are capable of adjustment in any position by means of their set-screws. The points 75* are made to slide vertically and freely in their holders 75, so that when the point-bars 72 bring the points down onto the paper the points may slide in their holders and prevent puncturing the paper, at the same time indicating the true position for the paper to be laid in. If necessary, the pointing apparatuses can be worked singly by disconnecting one of them.

In the three-folding or three-break machine illustrated 76 is the horizontal first folding knife. It is fixed to a saddle, 77, which has imparted to it (by the connecting rod 28*, as before described) a vertical motion onthe upright planed bed 78. This bed 78 is fixed vertically to the side of the back frame, as shown. The knife 7 6is capable of vertical adjustment on the saddle 77 by means of the slot 79 and the tightening-nut 80. This foldingknife 76 passes vertically through the space between the tables 4 and 5 and down between the flexible vertical guides 81 to a position so that its lower edge descends within a short distance of the table 3.

82 is the second folding-knife. It is firmly attached vertically to the saddle 83, which reciprocates horizontally and parallel with the length of the machine in the V-bed planed in the table 3. This folding-knife is driven by the lever 34 and connecting-rod 34*, as before described, and travels from left to right, passing between a suitable folding-aperture and flexible guides, giving the second fold to the paper, as hereinafter described. This vertical foldingknife is caused to reciprocate horizontally, and partakes of the intermittent motion given to the righthand intermittent wheel 29.

84. is thethirdhorizontal folding-knife, which is attached to the V-slide 85, which works horizontally in a V-bed, 86, carried by a hollow standard, 87, which forms the bearings for the shaft 24*, passes through, and is fixed onto the table 3 by means of a suitable flange, 88. The shaft 24* is caused to rotate by means of the miter-wheels 24, as before described. The upper part of this shaft 24* passes longitudinally through a slot in the slide 85, so that the slide can work without interfering with the shaft. The top of the shaft 24 is furnished with acrank-arm, pin, and connecting-rod, 89,

.between the pressing-rollers 54 and 54*.

(shown in Figs. 1, 6, and 19,) which connecting-rod is attached, by means of a suitable studpin, to the end ofthe slide 85, which it drives, carrying with it the horizontally-moving folding-knife 84. The edge of this knife passes between guides at 90, bringing its edge just This knife 84 partakes of the intermittent motion of the left-hand intermittent wheel 19.

.In Fig. 1, on the left hand, is shown a side view of the taker-off or piler. This takeroff or piler is shown in the drawings as double, but in some cases it may be single. In such case the fan would return to its normal position at the passage of each folded paper.

91 are the trough-section guides, inclined toward each other and meeting at their upper ends, where they are surmounted by a pilingfan, 92, which is caused to oscillate to such an extent each way as to bringits face at right angles to the bottom of each trough 91 alternately. For this purpose the fan 92 is fixed to a rocking axis, 93, having a pinion fixed on the farther end, which pinion is driven by the longitudinal reciprocating connecting-rod 52, before described, which rod has a toothed rack cut at its end, taking into the pinion on the shaft 93. The rod 52, gearing with the pinion on the end of the shaft 93, and having the necessary longitudinal reciprocating motion, causes the fan to vibrate, first one way and then the other, to the required position, as explained.

At the centers of the bottoms of the troughs 91 longitudinal slots are formed from top to bottom, or nearly so. In these slots slide guide-blocks attached to the receiving brackets or tables 94, causing them to work truly up and down the troughs 91. On the backs of the troughs 91, on each side of the longi tudinal slots, are fixed wedgeshaped pieces, gradually increasing in depth to their lower ends. Each of the brackets or piling-tables 94 is provided with aT-headed bolt, 96, passing through the longitudinal slots in the bottoms of troughs 91 and brackets 94. The ,T-heads of these bolts are fitted with anti-friction pulleys 97, as shown, which are drawn against the wedge-shaped pieces 95 by means of flynuts fitted onto'the other ends of the T-headed bolts, which nuts, by being turned, are caused to compress helical springs 98 sufficiently to give the necessary pressure to the rollers 97 upon the inclines 95. Thus as the brackets 94 approach the lower ends of the troughs 91 the rollers 97 will be forced farther out by the inclines 95, thus causing the friction of the descending brackets 94, with their load, to increase proportionately to the load placed upon them as they approach the lower end of the troughs 91.

The modus opemndt' of the machine is as follows: An attendant, being at each laying-on U have been previously adjusted.

table,places the paper under the points,which The machine is started by means of the striking apparatus 14. The gripper-frame and grippers travel to one end of the table and seize hold of the sheet which has previously been placed there. The gripper-frame stops in such a position that the center of the sheet shall be under the first folding-knife, 76. The grippers release the sheet. The knife 76 descends through the break in the folding-tables and down between the flexible guides 81, taking with it the sheet of paper folded exactly in the middle. The knife 76 recedes. leavingthe paper between the flexible guides in a once-folded state. The vertical second knife,82,then advances from left to right, passes through the folding-aperture and between flexible guides, folding the oncefolded sheet the second time in the middle vertically. The folding-knife 82 then retires to the left,leaving the twice-folded sheet between the flexible guides. The horizontal third folding-knife, 84, then advances, strikes the twice-folded sheet in the center, forces it between the horizontal guides 90, and passes it between the pressing-rollers 54 and 54*, 55 and 55*, which carry the folded sheet onto the delivery-tapes 58. The horizontal foldin gknife 84 then retires. At this moment the other set of grippers,having previously seized the sheet of paper already placed at the other pointing or laying-on table, advances toward the center of the machine, and places the center of that sheet under the first folding-knife, 76, and the operation of folding is repeated, as before. The brackets 94 having been previously placed in their highest positionin the trough, the first folded sheet is carried by the tapes 58 over the rollers 59 into the right-hand trough, Fig. 1, and onto its bracket. The piling-fan 92 then passes over to its right-hand position, Fig. 1, and the next folded sheet slides over the piling-fan and into the trough on the left-hand side, and so the operation is carried on, the piling-fan on each depression on either side pressing the pile of goods and causing the brackets to give way downward as room is required.

In this machine there is no necessity to have spurs in the edges of the folding-knives, as is usual in other machines, thereby preventing puncturing of the sheets to be folded, which sometimes is found inconvenient.

As is evident, this machine can fold simultaneously two different kinds of work, one kind being fed in at one end, the other kind at the opposite end of the machine.

What I claim is 1. In combination with the compound segment-wheel 17, with its toothed segment 17 steadying-segment 17 and anti-friction pulleys or rollers 18, and the intermittent wheel 19, the horizontal transverse shaft 20, crankarm 25, toothed wheel 26, internally-toothed circle 27, crank-arm 28, and pin-connecting rod 28*, saddle 77, horizontal folding-knife 76, and bed 78, the whole arranged and operating substantially as described and illustrated.

2. In a folding-machine, the combination of a traversing saddle, 61, hollow gripper-frame 65, arm -pieces 66, pivoted gripper-bar 67,

spring gripper-arms 68, and locking-piece 69, substantially as described, for the purpose specified.

3. In a folding-machine, the combination of grooved folding-tables 4 5, a traversing saddle, 61, hollow gripper-frame 65, arm-pieces 66, gripper-bar 67, spring gripper-arms 68, and locking-piece 69, all substantially as described, for the purpose specified.

4. In a folding-machine, the combination of a gripper-frame bed, 60, longitudinally grooved rectangular bar 60 free to move on pivots at each end, and a lever, 46*, operated as described, so as to cause said bar 60 to rock on its axis radially with the traversing gripper-frame and grippers, substantially as and for the purpose specified.

5. In a folding-machine, the combination of a gripper-frame bed, 60, longitudinallygrooved bar 60 free to move on pivots at each end, lever 46*, connecting-rod 46, antifriction roller and bell-crank lever 45, facecam 44, shaft 40, with bevel-wheel, pinion 18 shaft 18*, and the gripper-frame 65, ar1npieces 66, and gripper-arms 68, all substantially as described, for the purpose specified.

6. In a folding-machine, the combination of a vibrating lever, 38, operated as described, a connecting-rod, 39, an axis, 62, on which said connecting-rod works freely, and which passes through a saddle, 61, and is furnished at the inner face of said saddle with a crank arm, 63, furnished with a spherically-headed crank-pin taking into the groove of a rocking bar, 60*, the gripper-frame and grippers, the arm 64, and locking-piece 69, all substantially as and for the purpose specified.

F. V. MARTINI.

Witnesses:

WM. KNOLL, O. LINNEKOGEL,

Both of Fra'ztenfcld. 

